Kunshan GuoLi Electronic (GLVAC) is a high-tech manufacturer that produces HV relays, vacuum capacitors, vacuum interrupters, DC contactors, AC contactors, circuit breakers, hydrogen thyratrons, magnetrons, spark gaps, and other vacuum electrical apparatuses.

GLVAC’s products are mainly used in mining, broadcast communication, new energy (include motor vehicles), metallurgy, power, medical, semiconductor, environmental protection, industry flaw detection, security inspection, and many other devices.